Floor covering



FIG. 1 is a top view of a floor covering illustrating my new design;

FIG. 2 is a perspective view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is right view, thereof; and,

FIG. 7 is a left view, thereof.

The ornamental design for a floor covering, as shown and described.